NaI(Tl) Gamma Scintillation Detector 1.5" x 1.5" Crystal 

This detector is a great general purpose detector, it has a 38 x 38 mm Sodium Iodide crystal, coupled to a PMT with integral voltage divider, the whole package is housed in a spun aluminium housing and neatly capped off with an aluminium cap and silver plated BNC connector. Surface finished in a hard wearing radiant blue anodizing, you would have to admit that it's also pretty cool.

We recommend this detector for use with the GS-1100 range of drivers.

This detector is built by Bee Research from quality new components.


Scintillation Crystal: NaI(Tl) (Bridgeman Growth)

PMT.......................: 10 stage (ADIT USA)

Connector..............: BNC (Silver plated)

Background CPM...: ~950

Resolution at 660 keV: 7 - 9% 

Voltage Range 750V - 850V

Gamma Energy Range: 25 to 2500 KeV

Supplied with 1 m BNC to BNC Coaxial cable



Image 6

Construction Diagram with dimensions

Image 7

Spectrum of CS-137 showing expected resolution between 6% and 7% (Note there may be slight variation between detectors.)

Image 8

Background spectum in log scale showing efficency out to 2.5 MeV



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  • USD 900.00

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Tags: radiation detector, gamma detector, scintillation detector, nai detector, nai(tl) detector, GS-1515

Refund & Return Policy

We want you to be 100% happy with your Gammaspectacular product, and offer free after sales support to get you up and running.

If you for any reason you require a refund or replacement, please contact us within 30 days of purchase to arrange the return.
Return shipping cost and risk is the sole responsibility of the buyer.

Return shipping address: Bee Research, Po Box 6259, Alexandria, NSW 2020, Australia